Radiation therapy test phantom 41001

general purpose

Water phantom 41001 for vertical beamsSmall size water phantom for absolute dosimetry in photon and electron beams with vertical beam incidenceSuitable for calibration of ionization chambers in high-energy photon and electron beamsSuitable for monitor calibration in waterMakes it possible to irradiate a thimble chamber in water with vertical beam incidenceMakes it possible to vary the measuring depth by water level adjustmentThe water phantom type 41001 is designed for calibration measurements in radiation therapy with vertical beam incidence directly into the water surface. Measurements are done with a horizontally mounted thimble chamber, put into position through a hole in one side wall by using an appropriate waterproof acrylic adapter. To seal the hole, the adapter is supplied with an O-ring. By inserting the adapter tip into a cavity on the opposite wall, which serves as support, the adapter is fixed. Adapters are available for a variety of thimble chambers. The measuring position is 150 mm below the upper edge of the tank. The measuring depth can be varied by height adjustment of the water level by means of a vertical scale on the phantom wall. The external phantom dimensions are approximately 30 cm x 30 cm x 30 cm. The phantom has two handles for easy carrying, three adjustable supports for leveling, etched cross hairs for alignment and a collision protected drain tap for emptying without tilting or changing the phantom's position.